131343534 has 48 divisors (see below), whose sum is σ = 326263392. Its totient is φ = 37407744.

The previous prime is 131343533. The next prime is 131343551. The reversal of 131343534 is 435343131.

It is a super-2 number, since 2×131343534² = 34502247847218312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131343498 and 131343507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43002 + ... + 45954.

It is an arithmetic number, because the mean of its divisors is an integer number (6797154).

Almost surely, 2^131343534 is an apocalyptic number.

131343534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131343534 is an abundant number, since it is smaller than the sum of its proper divisors (194919858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131343534 is a wasteful number, since it uses less digits than its factorization.

131343534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321 (or 3318 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 131343534 is about 11460.5206688003. The cubic root of 131343534 is about 508.3188705252.

Adding to 131343534 its reverse (435343131), we get a palindrome (566686665).

The spelling of 131343534 in words is "one hundred thirty-one million, three hundred forty-three thousand, five hundred thirty-four".